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Table 5

Summary statistics for the 882 million sources in Gaia EDR3 with six-parameter solutions.

Value at G =
Quantity 9–12 13 14 15 16 17 18 19 20 21 Unit
Fraction of sources with 6-param. solution 6.2 2.4 2.2 2.7 5.6 11.9 22.4 48.6 77.7 27.5 %
Median standard uncertainty in α (σα*) at J2016.0 0.017 0.026 0.025 0.033 0.052 0.081 0.131 0.225 0.430 1.031 mas
Median standard uncertainty in δ (σδ) at J2016.0 0.016 0.024 0.023 0.030 0.045 0.069 0.112 0.194 0.382 1.025 mas
Median standard uncertainty in ϖ (σϖ) 0.023 0.033 0.031 0.040 0.061 0.093 0.151 0.266 0.526 1.390 mas
Median standard uncertainty in μα* (σμα*) 0.023 0.034 0.033 0.042 0.065 0.102 0.167 0.291 0.565 1.469 mas yr−1
Median standard uncertainty in μδ (σμδ) 0.021 0.031 0.029 0.036 0.051 0.078 0.132 0.240 0.490 1.470 mas yr−1
Median standard uncertainty in () 0.004 0.006 0.006 0.008 0.012 0.019 0.031 0.055 0.109 0.281 μm−1
Median renormalised unit weight error (RUWE) 1.127 1.362 1.167 1.104 1.102 1.085 1.053 1.033 1.029 1.048
Fraction with significant excess source noise 99.6 95.1 75.4 68.3 64.0 58.3 45.5 27.8 17.7 19.6 %
Median excess source noise (when significant) 0.169 0.275 0.387 0.405 0.471 0.569 0.809 1.343 2.153 3.838 mas
Mean number of visibility periods used 21.4 21.1 20.7 20.1 18.9 18.2 18.4 18.5 18.1 13.3
Mean number of FoV transits used 46.1 44.6 44.0 42.6 39.3 38.2 37.9 37.8 36.6 21.1
Mean number of good CCD observations AL 400 384 379 366 339 331 328 327 315 181
Mean fraction of bad CCD observations AL 1.3 1.5 1.9 2.1 1.5 1.0 0.7 0.6 0.6 0.6 %
Median ipd_gof_harmonic_amplitude 0.020 0.033 0.032 0.030 0.035 0.034 0.032 0.030 0.031 0.071
Mean ipd_frac_multi_peak 9.4 25.4 21.6 18.3 10.7 7.0 5.5 3.2 1.0 0.5 %
Mean ipd_frac_odd_win 0.0 4.8 7.9 8.1 6.3 5.2 4.4 4.2 3.8 2.1 %

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